Gamma-ray Burst 060708

(All information courtesy of the instrument teams.)

Previous IAU Circulars

• none

• GCN/BACODINE POSITION NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Sat 08 Jul 06 12:16:23 UT
  NOTICE_TYPE:     Swift-BAT GRB Position
  TRIGGER_NUM:     217805,   Seg_Num: 0
  GRB_RA:            7.798d {+00h 31m 12s} (J2000),
                     7.878d {+00h 31m 31s} (current),
                     7.182d {+00h 28m 44s} (1950)
  GRB_DEC:         -33.730d {-33d 43' 46"} (J2000),
                   -33.694d {-33d 41' 36"} (current),
                   -34.006d {-34d 00' 19"} (1950)
  GRB_ERROR:       3.00 [arcmin radius, statistical only]
  GRB_INTEN:       2721 [cnts]    Image_Peak=161 [image_cnts]
  TRIGGER_DUR:     0.512 [sec] 
  TRIGGER_INDEX:   124     E_range: 25-100 keV
  BKG_INTEN:       29737 [cnts]
  BKG_TIME:        44142.69 SOD {12:15:42.69} UT
  BKG_DUR:         8 [sec]
  GRB_DATE:        13924 TJD;   189 DOY;   06/07/08
  GRB_TIME:        44159.01 SOD {12:15:59.01} UT
  GRB_PHI:         -12.07 [deg]
  GRB_THETA:        18.48 [deg]
  SOLN_STATUS:     0x3
  RATE_SIGNIF:     18.13 [sigma]
  IMAGE_SIGNIF:    8.22 [sigma]
  MERIT_PARAMS:     +1  +0  +0  +0  +2 +14  +0  +0 +34  +1 
  SUN_POSTN:       107.57d {+07h 10m 18s}  +22.45d {+22d 27' 17"}
  SUN_DIST:        109.96 [deg]   Sun_angle= 6.6 [hr] (West of Sun)
  MOON_POSTN:      249.94d {+16h 39m 46s}  -27.02d {-27d 01' 21"}
  MOON_DIST:        95.46 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:      335.15,-82.09 [deg] galactic lon,lat of the burst (or transient)
  ECL_COORDS:      351.89,-33.67 [deg] ecliptic lon,lat of the burst (or transient)
  COMMENTS:        SWIFT-BAT GRB Coordinates.  
  COMMENTS:        This is a rate trigger.  
  COMMENTS:        A point_source was found.  
  COMMENTS:        This does not match any source in the on-board catalog.  
  COMMENTS:        This does not match any source in the ground catalog.  
  COMMENTS:        This is a GRB.  
  COMMENTS:        This trigger occurred at longitude,latitude = 301.85,11.05 [deg].  
  

• red DSS finding chart ps-file
  
  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Sat 08 Jul 06 12:17:49 UT
  NOTICE_TYPE:     Swift-XRT Image
  TRIGGER_NUM:     217805,   Seg_Num: 0
  GRB_RA:            7.8057d {+00h 31m 13.3s} (J2000),
                     7.8859d {+00h 31m 32.6s} (current),
                     7.1896d {+00h 28m 45.5s} (1950)
  GRB_DEC:         -33.7585d {-33d 45' 30.5"} (J2000),
                   -33.7226d {-33d 43' 21.2"} (current),
                   -34.0345d {-34d 02' 04.2"} (1950)
  GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
  GRB_INTEN:       148 [cnts]
  IMG_START_DATE:  13924 TJD;   189 DOY;   06/07/08
  IMG_START_TIME:  44221.31 SOD {12:17:01.31} UT,   62.3 [sec] since BAT Trigger Time
  CENTROID_X:      271.42,  raw= 271  [pixels]
  CENTROID_Y:      261.41,  raw= 261  [pixels]
  ROLL:            75.82 [deg]
  GAIN:            1
  MODE:            3, Long Image mode
  WAVEFORM:        134
  EXPO_TIME:       2.50 [sec]
  GRB_POS_XRT_Y:   -88.12
  GRB_POS_XRT_Z:   -70.42
  IMAGE_URL:       sw00217805000msxps_rw.img
  SUN_POSTN:       107.58d {+07h 10m 18s}  +22.45d {+22d 27' 17"}
  SUN_DIST:        109.96 [deg]   Sun_angle= 6.6 [hr] (West of Sun)
  MOON_POSTN:      249.95d {+16h 39m 49s}  -27.02d {-27d 01' 28"}
  MOON_DIST:        95.44 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:      334.99,-82.07 [deg] galactic lon,lat of the burst
  ECL_COORDS:      351.89,-33.69 [deg] ecliptic lon,lat of the burst
  COMMENTS:        SWIFT-XRT Image.  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Sat 08 Jul 06 12:17:48 UT
  NOTICE_TYPE:     Swift-XRT Position
  TRIGGER_NUM:     217805,   Seg_Num: 0
  GRB_RA:            7.8057d {+00h 31m 13.3s} (J2000),
                     7.8859d {+00h 31m 32.6s} (current),
                     7.1896d {+00h 28m 45.5s} (1950)
  GRB_DEC:         -33.7585d {-33d 45' 30.5"} (J2000),
                   -33.7226d {-33d 43' 21.2"} (current),
                   -34.0345d {-34d 02' 04.2"} (1950)
  GRB_ERROR:       4.7 [arcsec radius, statistical plus systematic, 90% containment]
  GRB_INTEN:       3.44e-09 [erg/cm2/sec]
  GRB_SIGNIF:      12.16 [sigma]
  IMG_START_DATE:  13924 TJD;   189 DOY;   06/07/08
  IMG_START_TIME:  44221.31 SOD {12:17:01.31} UT,   62.3 [sec] since BAT Trigger Time
  TAM[0-3]:        327.64 237.20 261.31 243.19
  AMPLIFIER:       2
  WAVEFORM:        134
  SUN_POSTN:       107.58d {+07h 10m 18s}  +22.45d {+22d 27' 17"}
  SUN_DIST:        109.96 [deg]   Sun_angle= 6.6 [hr] (West of Sun)
  MOON_POSTN:      249.95d {+16h 39m 49s}  -27.02d {-27d 01' 28"}
  MOON_DIST:        95.44 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:      334.99,-82.07 [deg] galactic lon,lat of the burst
  ECL_COORDS:      351.89,-33.69 [deg] ecliptic lon,lat of the burst
  COMMENTS:        SWIFT-XRT Coordinates.  
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Sat 08 Jul 06 12:18:12 UT
  NOTICE_TYPE:     Swift-XRT Processed Image
  TRIGGER_NUM:     217805,   Seg_Num: 0
  GRB_RA:            7.8057d {+00h 31m 13.3s} (J2000),
                     7.8859d {+00h 31m 32.6s} (current),
                     7.1896d {+00h 28m 45.5s} (1950)
  GRB_DEC:         -33.7585d {-33d 45' 30.5"} (J2000),
                   -33.7226d {-33d 43' 21.2"} (current),
                   -34.0345d {-34d 02' 04.2"} (1950)
  GRB_ERROR:       4.7 [arcsec, radius, statistical plus systematic]
  GRB_INTEN:       148 [cnts]
  IMG_START_DATE:  13924 TJD;   189 DOY;   06/07/08
  IMG_START_TIME:  44221.31 SOD {12:17:01.31} UT,   62.3 [sec] since BAT Trigger Time
  CENTROID_X:      271.42,  raw= 271  [pixels]
  CENTROID_Y:      261.41,  raw= 261  [pixels]
  ROLL:            75.82 [deg]
  GAIN:            1
  MODE:            3, Long Image mode
  WAVEFORM:        134
  EXPO_TIME:       2.50 [sec]
  GRB_POS_XRT_Y:   -88.12
  GRB_POS_XRT_Z:   -70.42
  IMAGE_URL:       sw00217805000msxps_rw.img
  SUN_POSTN:       107.58d {+07h 10m 18s}  +22.45d {+22d 27' 17"}
  SUN_DIST:        109.96 [deg]   Sun_angle= 6.6 [hr] (West of Sun)
  MOON_POSTN:      249.96d {+16h 39m 50s}  -27.03d {-27d 01' 31"}
  MOON_DIST:        95.44 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:      334.99,-82.07 [deg] galactic lon,lat of the burst
  ECL_COORDS:      351.89,-33.69 [deg] ecliptic lon,lat of the burst
  COMMENTS:        SWIFT-XRT Processed Image.  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Sat 08 Jul 06 12:20:23 UT
  NOTICE_TYPE:     Swift-BAT GRB Lightcurve
  TRIGGER_NUM:     217805,   Seg_Num: 0
  GRB_RA:            7.798d {+00h 31m 12s} (J2000),
                     7.878d {+00h 31m 31s} (current),
                     7.182d {+00h 28m 44s} (1950)
  GRB_DEC:         -33.730d {-33d 43' 46"} (J2000),
                   -33.694d {-33d 41' 36"} (current),
                   -34.006d {-34d 00' 19"} (1950)
  GRB_DATE:        13924 TJD;   189 DOY;   06/07/08
  GRB_TIME:        44159.01 SOD {12:15:59.01} UT
  TRIGGER_INDEX:   124
  GRB_PHI:         -12.07 [deg]
  GRB_THETA:        18.48 [deg]
  DELTA_TIME:      -31.00 [sec]
  TRIGGER_DUR:     0.512 [sec] 
  SOLN_STATUS:     0x3
  RATE_SIGNIF:     18.13 [sigma]
  IMAGE_SIGNIF:    8.22 [sigma]
  LC_URL:          sw00217805000msb.lc
  SUN_POSTN:       107.58d {+07h 10m 18s}  +22.45d {+22d 27' 16"}
  SUN_DIST:        109.96 [deg]   Sun_angle= 6.6 [hr] (West of Sun)
  MOON_POSTN:      249.98d {+16h 39m 56s}  -27.03d {-27d 01' 42"}
  MOON_DIST:        95.43 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:      335.15,-82.09 [deg] galactic lon,lat of the burst (or transient)
  ECL_COORDS:      351.89,-33.67 [deg] ecliptic lon,lat of the burst (or transient)
  COMMENTS:        SWIFT-BAT GRB Lightcurve.  
  COMMENTS:           
  COMMENTS:        The next comments were copied from the BAT_POS Notice:  
  COMMENTS:        This is a rate trigger.  
  COMMENTS:        A point_source was found.  
  COMMENTS:        This does not match any source in the on-board catalog.  
  COMMENTS:        This does not match any source in the ground catalog.  
  COMMENTS:        This is a GRB.  
  COMMENTS:        This trigger occurred at longitude,latitude = 301.85,11.05 [deg].  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Sat 08 Jul 06 12:22:11 UT
  NOTICE_TYPE:     Swift-UVOT Image
  TRIGGER_NUM:     217805,   Seg_Num: 0
  POINT_RA:          7.776d {+00h 31m 06s} (J2000)
  POINT_DEC:       -33.739d {-33d 44' 21"} (J2000)
  ROLL:            75.816d
  IMG_START_DATE:  13924 TJD;   189 DOY;   06/07/08
  IMG_START_TIME:  44231.34 SOD {12:17:11.34} UT,   72.3 [sec] since BAT Trigger Time
  FILTER:          10, White
  EXPOSURE_ID:     174053832
  X_OFFSET:        1018 [pixels]
  Y_OFFSET:        974 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       1178
  Y_GRB_POS:       1134
  BINNING_INDEX:   1
  IM_URL:          sw00217805000msuni0072.fits
  SUN_POSTN:       107.58d {+07h 10m 19s}  +22.45d {+22d 27' 16"}
  SUN_DIST:        109.98 [deg]   Sun_angle= 6.7 [hr] (West of Sun)
  MOON_POSTN:      250.00d {+16h 39m 60s}  -27.03d {-27d 01' 52"}
  MOON_DIST:        95.40 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:      335.21,-82.07 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      351.87,-33.67 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Image.  
  COMMENTS:        The GRB Position came from the XRT Position Command.  
  COMMENTS:        The image has 2x2 binning (compression).  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Sat 08 Jul 06 12:23:31 UT
  NOTICE_TYPE:     Swift-UVOT Processed Image
  TRIGGER_NUM:     217805,   Seg_Num: 0
  POINT_RA:          7.776d {+00h 31m 06s} (J2000)
  POINT_DEC:       -33.739d {-33d 44' 21"} (J2000)
  ROLL:            75.816d
  IMG_START_DATE:  13924 TJD;   189 DOY;   06/07/08
  IMG_START_TIME:  44231.34 SOD {12:17:11.34} UT,   72.3 [sec] since BAT Trigger Time
  FILTER:          10, White
  EXPOSURE_ID:     174053832
  X_OFFSET:        1018 [pixels]
  Y_OFFSET:        974 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       1178
  Y_GRB_POS:       1134
  BINNING_INDEX:   1
  IM_URL:          sw00217805000msuni0072.fits
  SUN_POSTN:       107.58d {+07h 10m 19s}  +22.45d {+22d 27' 15"}
  SUN_DIST:        109.99 [deg]   Sun_angle= 6.7 [hr] (West of Sun)
  MOON_POSTN:      250.01d {+16h 40m 03s}  -27.03d {-27d 02' 00"}
  MOON_DIST:        95.39 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:      335.21,-82.07 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      351.87,-33.67 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Processed Image.  
  COMMENTS:        The GRB Position came from the XRT Position Command.  
  COMMENTS:        The image has 2x2 binning (compression).  
  COMMENTS:        All 4 attachments are included.  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Sat 08 Jul 06 12:21:09 UT
  NOTICE_TYPE:     Swift-UVOT Source List
  TRIGGER_NUM:     217805,   Seg_Num: 0
  POINT_RA:          7.776d {+00h 31m 06s} (J2000)
  POINT_DEC:       -33.739d {-33d 44' 21"} (J2000)
  POINT_ROLL:      75.816d
  IMG_START_DATE:  13924 TJD;   189 DOY;   06/07/08
  IMG_START_TIME:  44231.34 SOD {12:17:11.34} UT,   72.3 [sec] since BAT Trigger Time
  FILTER:          10, White
  BKG_MEAN:        4.187
  N_STARS:         10
  X_OFFSET:        608 [pixels]
  Y_OFFSET:        464 [pixels]
  X_MAX:           1567 [pixels]
  Y_MAX:           1423 [pixels]
  DET_THRESH:      17
  PHOTO_THRESH:    10
  SL_URL:          sw00217805000msufc0072.fits
  SUN_POSTN:       107.58d {+07h 10m 19s}  +22.45d {+22d 27' 16"}
  SUN_DIST:        109.98 [deg]   Sun_angle= 6.7 [hr] (West of Sun)
  MOON_POSTN:      249.99d {+16h 39m 57s}  -27.03d {-27d 01' 46"}
  MOON_DIST:        95.41 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:      335.21,-82.07 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      351.87,-33.67 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Source List.  
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Sat 08 Jul 06 12:22:55 UT
  NOTICE_TYPE:     Swift-UVOT Processed Source List
  TRIGGER_NUM:     217805,   Seg_Num: 0
  POINT_RA:          7.776d {+00h 31m 06s} (J2000)
  POINT_DEC:       -33.739d {-33d 44' 21"} (J2000)
  POINT_ROLL:      75.816d
  IMG_START_DATE:  13924 TJD;   189 DOY;   06/07/08
  IMG_START_TIME:  44231.34 SOD {12:17:11.34} UT,   72.3 [sec] since BAT Trigger Time
  FILTER:          10, White
  BKG_MEAN:        4.187
  N_STARS:         10
  X_OFFSET:        608 [pixels]
  Y_OFFSET:        464 [pixels]
  X_MAX:           1567 [pixels]
  Y_MAX:           1423 [pixels]
  DET_THRESH:      17
  PHOTO_THRESH:    10
  SL_URL:          sw00217805000msufc0072.fits
  SUN_POSTN:       107.58d {+07h 10m 19s}  +22.45d {+22d 27' 15"}
  SUN_DIST:        109.99 [deg]   Sun_angle= 6.7 [hr] (West of Sun)
  MOON_POSTN:      250.01d {+16h 40m 02s}  -27.03d {-27d 01' 56"}
  MOON_DIST:        95.39 [deg]
  MOON_ILLUM:      91 [%]
  GAL_COORDS:      335.21,-82.07 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      351.87,-33.67 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Processed Source List.  
  COMMENTS:        All 4 attachments are included.  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Sat 08 Jul 06 12:27:46 UT
  NOTICE_TYPE:     Swift-UVOT Source List
  TRIGGER_NUM:     217805,   Seg_Num: 0
  POINT_RA:          7.774d {+00h 31m 06s} (J2000)
  POINT_DEC:       -33.738d {-33d 44' 15"} (J2000)
  POINT_ROLL:      75.816d
  IMG_START_DATE:  13924 TJD;   189 DOY;   06/07/08
  IMG_START_TIME:  44336.63 SOD {12:18:56.63} UT,   177.6 [sec] since BAT Trigger Time
  FILTER:          3, V
  BKG_MEAN:        2.553
  N_STARS:         8
  X_OFFSET:        698 [pixels]
  Y_OFFSET:        654 [pixels]
  X_MAX:           1657 [pixels]
  Y_MAX:           1613 [pixels]
  DET_THRESH:      13
  PHOTO_THRESH:    7
  SL_URL:          sw00217805000msufc0177.fits
  SUN_POSTN:       107.58d {+07h 10m 20s}  +22.45d {+22d 27' 14"}
  SUN_DIST:        109.99 [deg]   Sun_angle= 6.7 [hr] (West of Sun)
  MOON_POSTN:      250.06d {+16h 40m 14s}  -27.04d {-27d 02' 22"}
  MOON_DIST:        95.35 [deg]
  MOON_ILLUM:      92 [%]
  GAL_COORDS:      335.23,-82.07 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      351.87,-33.66 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Source List.  
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Sat 08 Jul 06 12:28:30 UT
  NOTICE_TYPE:     Swift-UVOT Position
  TRIGGER_NUM:     217805,   Seg_Num: 0
  GRB_RA:            7.8076d {+00h 31m 13.82s} (J2000),
                     7.8878d {+00h 31m 33.06s} (current),
                     7.1915d {+00h 28m 45.95s} (1950)
  GRB_DEC:         -33.7590d {-33d 45' 32.4"} (J2000),
                   -33.7231d {-33d 43' 23.0"} (current),
                   -34.0350d {-34d 02' 06.0"} (1950)
  GRB_ERROR:       0.4 [arcsec radius, statistical only]
  GRB_MAG:         17.39 +/- 0.50 [mag]
  FILTER:          10, White
  IMG_START_DATE:  13924 TJD;   189 DOY;   06/07/08
  IMG_START_TIME:  44231.00 SOD {12:17:11.00} UT,   72.0 [sec] since BAT Trigger Time
  SUN_POSTN:       107.58d {+07h 10m 20s}  +22.45d {+22d 27' 14"}
  SUN_DIST:        109.97 [deg]   Sun_angle= 6.6 [hr] (West of Sun)
  MOON_POSTN:      250.07d {+16h 40m 16s}  -27.04d {-27d 02' 26"}
  MOON_DIST:        95.36 [deg]
  MOON_ILLUM:      92 [%]
  GAL_COORDS:      334.98,-82.07 [deg] galactic lon,lat of the burst (or transient)
  ECL_COORDS:      351.89,-33.69 [deg] ecliptic lon,lat of the burst (or transient)
  COMMENTS:        SWIFT UVOT Position Notice.  
  COMMENTS:        This Notice was ground-generated -- not flight-generated.  
  

• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Sat 08 Jul 06 12:29:03 UT
  NOTICE_TYPE:     Swift-UVOT Processed Source List
  TRIGGER_NUM:     217805,   Seg_Num: 0
  POINT_RA:          7.774d {+00h 31m 06s} (J2000)
  POINT_DEC:       -33.738d {-33d 44' 15"} (J2000)
  POINT_ROLL:      75.816d
  IMG_START_DATE:  13924 TJD;   189 DOY;   06/07/08
  IMG_START_TIME:  44336.63 SOD {12:18:56.63} UT,   177.6 [sec] since BAT Trigger Time
  FILTER:          3, V
  BKG_MEAN:        2.553
  N_STARS:         8
  X_OFFSET:        698 [pixels]
  Y_OFFSET:        654 [pixels]
  X_MAX:           1657 [pixels]
  Y_MAX:           1613 [pixels]
  DET_THRESH:      13
  PHOTO_THRESH:    7
  SL_URL:          sw00217805000msufc0177.fits
  SUN_POSTN:       107.58d {+07h 10m 20s}  +22.45d {+22d 27' 14"}
  SUN_DIST:        109.99 [deg]   Sun_angle= 6.7 [hr] (West of Sun)
  MOON_POSTN:      250.07d {+16h 40m 17s}  -27.04d {-27d 02' 29"}
  MOON_DIST:        95.34 [deg]
  MOON_ILLUM:      92 [%]
  GAL_COORDS:      335.23,-82.07 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      351.87,-33.66 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Processed Source List.  
  COMMENTS:        All 4 attachments are included.  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Sat 08 Jul 06 12:29:20 UT
  NOTICE_TYPE:     Swift-UVOT Image
  TRIGGER_NUM:     217805,   Seg_Num: 0
  POINT_RA:          7.774d {+00h 31m 06s} (J2000)
  POINT_DEC:       -33.738d {-33d 44' 15"} (J2000)
  ROLL:            75.816d
  IMG_START_DATE:  13924 TJD;   189 DOY;   06/07/08
  IMG_START_TIME:  44336.63 SOD {12:18:56.63} UT,   177.6 [sec] since BAT Trigger Time
  FILTER:          3, V
  EXPOSURE_ID:     174053937
  X_OFFSET:        1018 [pixels]
  Y_OFFSET:        974 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       1178
  Y_GRB_POS:       1134
  BINNING_INDEX:   1
  IM_URL:          sw00217805000msuni0177.fits
  SUN_POSTN:       107.58d {+07h 10m 20s}  +22.45d {+22d 27' 14"}
  SUN_DIST:        109.99 [deg]   Sun_angle= 6.7 [hr] (West of Sun)
  MOON_POSTN:      250.07d {+16h 40m 18s}  -27.04d {-27d 02' 30"}
  MOON_DIST:        95.34 [deg]
  MOON_ILLUM:      92 [%]
  GAL_COORDS:      335.23,-82.07 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      351.87,-33.66 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Image.  
  COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
  COMMENTS:        The image has 2x2 binning (compression).  
  

  
• GCN NOTICE
  

  TITLE:           GCN/SWIFT NOTICE
  NOTICE_DATE:     Sat 08 Jul 06 12:30:47 UT
  NOTICE_TYPE:     Swift-UVOT Processed Image
  TRIGGER_NUM:     217805,   Seg_Num: 0
  POINT_RA:          7.774d {+00h 31m 06s} (J2000)
  POINT_DEC:       -33.738d {-33d 44' 15"} (J2000)
  ROLL:            75.816d
  IMG_START_DATE:  13924 TJD;   189 DOY;   06/07/08
  IMG_START_TIME:  44336.63 SOD {12:18:56.63} UT,   177.6 [sec] since BAT Trigger Time
  FILTER:          3, V
  EXPOSURE_ID:     174053937
  X_OFFSET:        1018 [pixels]
  Y_OFFSET:        974 [pixels]
  WIDTH:           160 [pixels]
  HEIGHT:          160 [pixels]
  X_GRB_POS:       1178
  Y_GRB_POS:       1134
  BINNING_INDEX:   1
  IM_URL:          sw00217805000msuni0177.fits
  SUN_POSTN:       107.58d {+07h 10m 20s}  +22.45d {+22d 27' 13"}
  SUN_DIST:        109.99 [deg]   Sun_angle= 6.7 [hr] (West of Sun)
  MOON_POSTN:      250.09d {+16h 40m 21s}  -27.04d {-27d 02' 38"}
  MOON_DIST:        95.33 [deg]
  MOON_ILLUM:      92 [%]
  GAL_COORDS:      335.23,-82.07 [deg] galactic lon,lat of the pointing direction
  ECL_COORDS:      351.87,-33.66 [deg] ecliptic lon,lat of the pointing direction
  COMMENTS:        SWIFT-UVOT Processed Image.  
  COMMENTS:        The GRB Position came from the Window Position in the Mode Command.  
  COMMENTS:        The image has 2x2 binning (compression).  
  COMMENTS:        All 4 attachments are included.  
  

  
• GCN Circular #5292
  A. Moretti (INAF-OAB), L. M. Barbier (NASA/GSFC), S. D. Barthelmy (GSFC), N. Gehrels (NASA/GSFC), J. A. Kennea (PSU), C. B. Markwardt (GSFC/UMD), K. M. McLean (LANL/UTD), D. M. Palmer (LANL), A. M. Parsons (GSFC), P. Romano (INAF-OAB) and D. E. Vanden Berk (PSU) report on behalf of the Swift Team:
  At 12:15:59 UT, the Swift Burst Alert Telescope (BAT) triggered and located GRB 060708 (trigger=217805). Swift slewed immediately to the burst. The BAT on-board calculated location is RA,Dec 7.798, -33.730 {00h 31m 12s, -33d 43' 46"} (J2000) with an uncertainty of 3 arcmin (radius, 90% containment, including systematic uncertainty). The BAT light curve shows a single, roughly triangular peak structure with a duration of ~12 sec. The peak count rate was ~5000 counts/sec (15-350 keV), at ~2 sec after the trigger.
  The XRT began observing the field at 12:17:01 UT, 62 seconds after the BAT trigger. XRT found a bright and fading X-ray source located at RA(J2000) = 00 31 13.50, Dec(J2000) = -33 45 33.8, with an estimated uncertainty of 4.1 arcseconds (90% confidence radius). This location is 103 arcseconds from the BAT on-board position, within the BAT error circle and it is 4.6" from the UVOT candidate (see below). The initial flux in the 2.5s image was 3.4e-09 erg/cm2/s (0.2-10 keV).
  UVOT took a finding chart exposure of 100 seconds with the White (160-650 nm) filter starting 72 seconds after the BAT trigger. There is a candidate afterglow in the list of sources generated on-board at (RA,DEC) (J2000) of (7.8077,-33.7590) or (00h31m13.85s,-33o45'32.4") with a 1-sigma error radius of about 0.5 arcsec. This position is 4.5 arcsec from the center of the XRT error circle. The estimated magnitude is 17.4 with a 1-sigma error of about 0.5 mag. No correction has been made for the expected extinction corresponding to E(B-V) of 0.01.
• GCN Circular #5295
  E. Fenimore (LANL), L. Barbier (GSFC), S. D. Barthelmy (GSFC), J. Cummings (GSFC/ORAU), N. Gehrels (GSFC), D. Hullinger (BYU-Idaho), H. Krimm (GSFC/USRA), M. Koss (GSFC/UMD), C. Markwardt (GSFC/UMD), D. Palmer (LANL), A. Parsons (GSFC), T. Sakamoto (GSFC/ORAU), G. Sato (GSFC/ISAS), M. Stamatikos (GSFC/ORAU), J. Tueller (GSFC) on behalf of the Swift-BAT team:
  Using the data set from T-119 to T+183 sec from recent telemetry downlinks, we report further analysis of BAT GRB 060708 (trigger #217805) (Moretti, et al., GCN 5292). The BAT ground-calculated position is RA,Dec = 7.830,-33.752 deg {0h 31m 19.2s, -33d 45' 7.7"} (J2000) +- 1.0 arcmin, (radius, sys+stat, 90% containment). The partial coding was 100%.
  The mask-tagged lightcurve shows a single, roughly triangular peak starting at T-2 sec, peaking at T+1 sec, and ending at ~T+9 sec. T90 (15-350 keV) is 9.8 +- 1 sec (estimated error including systematics).
  The time-averaged spectrum from T-0.3 to T+14.2 is best fit by a simple power-law model. The power law index of the time-averaged spectrum is 1.68 +- 0.12. The fluence in the 15-150 keV band is 5.0 +- 0.4 x 10^-7 erg/cm2. The 1-sec peak photon flux measured from T+1.11 sec in the 15-150 keV band is 2.0 +- 0.1 ph/cm2/sec. All the quoted errors are at the 90% confidence level.
• GCN Circular #5296
  P. Schady (UCL-MSSL), A. Moretti (INAF-OAB) report on behalf of the Swift/UVOT team:
  The Swift/UVOT began observing the field of GRB 060708 at 12:17:11 UT on 2006-07-08, 72 s after the BAT trigger (Moretti et al., GCN 5292). An optical counterpart is clearly detected in the white, V, B and U-bands, and is detected in the UVW1 filter at the 2sigma level. The position of the optical afterglow lies within the XRT error circle at RA,Dec (J2000) = 00 31 13.82, -33 45 32.4 to within 0.5 arcsec. The lack of a detection in the two bluest UV filters suggests a photometric redshift of z ~ 1.8. The photometry results are given for the 7 filters below:
  Filter T_Obs(s) Exposure(s) Magnitude/3sig_UL
  WHITE 122 97 16.81 +/- 0.07 WHITE 5923 196 19.23 +/- 0.32 V 294 52 15.53 +/- 0.16 V 4901 197 19.78 +/- 0.63 B 4287 196 19.60 +/- 0.23 B 5719 193 20.27 +/- 0.65 U 4082 192 18.85 +/- 0.17 U 5514 189 18.78 +/- 0.20 W1 3776-5600 392 20.18 +/- 0.52 (coadded) M2 3568-5392 385 20.00 (3 sigma UL) W2 4592-6352 353 19.77 (3 sigma UL)
  The values quoted above are not corrected for the expected Galactic extinction E(B-V)=0.011
• GCN Circular #5297
  S.D. Vergani (DIAS & DCU), C. Guidorzi (Univ. Bicocca & INAF-OABr), P. Romano (INAF-OABr), and A. Moretti (INAF-OABr), report on behalf of the Swift-XRT team:
  We have analyzed the first two orbits of data of GRB 060708 (Moretti et al., GCN 5292). The XRT data set consists of 169 s exposure in windowed timing (WT) mode followed by 2.67 ks exposure in photon counting (PC) mode.
  The refined position of the source is

    RA  (J2000) =  00h 31m 13.53s
    Dec (J2000) = -33d 45' 33.3"
  

  with an uncertainty of 3.8 arcsec (90% containment).
  This position is 4.0 arcsec from the XRT on board position, 2.9 arcsec and 4.1 arcsec from the XRT and UVOT positions respectively, reported by Moretti at al. (GCN 5292).
  The 0.3-10 keV X-ray light curve shows a double broken power-law decay, starting with a steep segment (alpha ~ 4) that become shallower (alpha ~ 0.8) after ~200 s from BAT trigger time.
  The WT spectrum is fitted by an absorbed power law with photon index 3.3 +/- 0.1 and N_H of about 1.5E21 cm^-2, in excess with respect to the Galactic value (1.8E20 cm^-2).
  The PC spectrum is fitted by an absorbed power law with photon index 2.3 +/- 0.1 and N_H of about 8.8E20 cm^-2.
  Assuming alpha ~ 0.8, the extrapolated unabsorbed flux (0.3-10 KeV) at 24 hours is 9.7E-13 erg cm^-2 s^-1.
  This Circular is an official product of the Swift XRT Team.
• GCN Circular #5299
  S. Parris, A. Smith, M. Nysewander, D. Reichart, K. Ivarsen, A. Foster, A. LaCluyze, J.A. Crain report:
  SkyNet observed the localization of GRB 060708 (Moretti et al. GCN 5292) with four of the 16" PROMPT telescopes at CTIO beginning 15.4 hours after the burst in UBgriz.
  We were unable to see the afterglow down to 3-sigma limiting magnitudes of z' > 19.0 at a mean time of 15.7 hours after the burst, i' > 19.2 at 18.6 hours, and r' > 19.3 at 15.7 hours.
  PROMPT is currently being built and commissioned.
• GCN Circular #5318
  H. Swan (U Mich), E. Rykoff (U Mich), S. Yost (U Mich), T. McKay (U Mich), C. Akerlof (U Mich), I. Smith (Rice), report on behalf of the MARGE collaboration:
  The AEOS Burst Camera (ABC) on the AEOS 3.63m telescope, located at the Maui Space Surveillance System on Haleakala, observed the optical counterpart to GRB 060708 (Swift trigger 217805, Moretti, et al, GCN 5292). Over 160 10-s images were taken between 2006-07-08 12:33:14.19 UT (1035 s after the burst), and 14:16:21.78 UT (7222s after the burst), with low resolution (R~10) grating spectroscopy. The OT is clearly detected in individual images, and fades during the observation. The position of the OT is:
  00:31:13.85 -33:45:33.0 (J2000)
  consistent with the UVOT position (Schady and Moretti, GCN 5296). At 12:33:14.19 UT, the OT is approximately 17.7 mag (R equivalent, relative to a nearby 14th magnitude USNO B1.0 star). The low resolution grating on the ABC is designed to study the color evolution of the early afterglow.
• GCN Circular #5319
  Pall Jakobsson (U. Hertfordshire), Paul Vreeswijk (ESO), Sara Ellison (U. Victoria), Javier Gorosabel (IAA-CSIC Granada), Nial Tanvir (U. Hertfordshire), Johan P.U. Fynbo, Brian L. Jensen, Jens Hjorth (DARK, NBI), D. Alexander Kann (TLS Tautenburg), Klaas Wiersema and Ralph A.M.J. Wijers (University of Amsterdam) report on behalf of a larger collaboration:
  Using FORS2 on the Very Large Telescope, we have obtained 3*30 min spectra (300V) of the GRB 060708 field (Moretti et al., GCN 5292). The UVOT optical afterglow candidate (Moretti et al., GCN 5292; Schady & Moretti, GCN 5296) has clearly faded in our acquisition image. Using photometric zeropoints from the ESO webpages we estimate the afterglow magnitude to be R ~ 22.9 on July 10.290 (1.778 days post-burst).
  The combined spectrum does not display any obvious features. However, a firm upper limit of z < 2.3 can be placed on the redshift of GRB 060708 from the lack of Ly-alpha forest lines in the spectrum of the afterglow. This is consistent with the UVOT observations (Schady & Moretti, GCN 5296).
  The slit was aligned to cover the galaxy, 8 arcsec south of the afterglow (just outside the XRT error circle). This galaxy has a magnitude of R ~ 19.5 and displays numerous absorption features, such as Ca II (K & H), G-band, H-beta, Mg I, Na I (D) and H-alpha, corresponding to a redshift of z = 0.249.
  An image of the field is shown at:
  http://star-www.herts.ac.uk/~palli/grb060708/grb060708.jpg
  
• Redshift of z = 1.92
  0907.3449 from 20 Jul 2009
  Fynbo et al: Low-Resolution Spectroscopy of Gamma-ray Burst Optical Afterglows: Biases in the Swift Sample and Characterization of the Absorbers
  Abstract: (Abridged). We present a sample of 77 optical afterglows (OAs) of Swift detected GRBs for which spectroscopic follow-up observations have been secured. We provide linelists and equivalent widths for all detected lines redward of Ly-alpha. We discuss to what extent the current sample of Swift bursts with OA spectroscopy is a biased subsample of all Swift detected GRBs. For that purpose we define an X-ray selected sample of Swift bursts with optimal conditions for ground-based follow up from the period March 2005 to September 2008; 146 bursts fulfill our sample criteria. We derive the redshift distribution for this sample and conclude that less than 19% of Swift bursts are at z>7. We compare the high energy properties for three sub-samples of bursts in the sample: i) bursts with redshifts measured from OA spectroscopy, ii) bursts with detected OA, but no OA-based redshift, and iii) bursts with no detection of the OA. The bursts in group i) have significantly less excess X-ray absorption than bursts in the other two groups. In addition, the fraction of dark bursts is 14% in group i), 38% in group ii) and > 39% in group iii). From this we conclude that the sample of GRBs with OA spectroscopy is not representative for all Swift bursts, most likely due to a bias against the most dusty sight-lines. Finally, we characterize GRB absorption systems as a class and compare them to QSO absorption systems, in particular DLAs. On average GRB absorbers are characterized by significantly stronger EWs for HI as well as for both low and high ionization metal lines than what is seen in intervening QSO absorbers. Based on the z>2 bursts in the sample we place a 95% confidence upper limit of 7.5% on the mean escape fraction of ionizing photons from star-forming galaxies.